# 算数运算符
print(1+1)
print(1-1)
print(1*1)
print(1/1)


# 取整除
print(3//2)

# 取余数
print(30%2)

# 取幂 5的2次方
print(5**2)

# 赋值运算符
s1 = 100
s1 += 10
print(s1)